If they don't it means that arranging fakewars with friends so you can retalwar somebody with 75% protection is ok.
Damned if you do, damned if you don't.
Pewpew & Swea is just as guilty for killing the game whatever happens from this.
But personally I think context is vital to this situation which you completely ignore in your claim.
pewpew acted suspiciously since they're leaving acre def and within minutes SWEA has a whole bunch of quadtaps on that prov so coordination seems obvious which makes this a fake war instead of a real one gone sideways from interference.